Hot Air Stirling Engine Model with USB Light, Electricity Generator Engine, Metal Single-cylinder Motor, 2025 Christmas Desk Decor & Gift for Adults

Hot Air Stirling Engine: This Hot Air Stirling Engine features an integrated generator that produces enough power to illuminate the USB light, demonstrating complete energy conversion from heat to electricity when operated with the included alcohol lamp Mesmerizing Visual Display: The Hot Air Stirling Engine creates a captivating spectacle when operating in dark environments, with the brilliant USB light highlighting the energy conversion process while the engine runs at high speed Product Dimensions: 16.5 x 9.5 x 11.5cm. The Hot Air Stirling Engine is crafted from high-quality zinc alloy with electroplated finish Wide Application: The principle of the closed-cycle reciprocating engine with easy usage and function is that the external heating makes the cyclic expansion and compression of the gas at different temperatures Elegant Desk Decor & Gift: With its sophisticated industrial design, this Hot Air Stirling Engine serves as both an eye-catching desk ornament and a thoughtful gift for Christmas, birthdays, or special occasions, Manufacturer: Engineerkiter